Basic Economics
Introduction to economic concepts
Economics studies how people, businesses, and governments make decisions about limited resources. The central problem is scarcity — resources are limited, but wants are unlimited. This forces choices.
Every choice involves an opportunity cost — the value of the next-best option you give up.
Demand is how much consumers are willing to buy at different prices. The law of demand: as price rises, quantity demanded falls. The demand curve slopes downward.
Supply is how much producers are willing to sell. The law of supply: as price rises, quantity supplied rises. The supply curve slopes upward.
Market equilibrium is where demand and supply curves intersect — the equilibrium price. At this price, quantity demanded equals quantity supplied.
If price is above equilibrium, a surplus occurs. If below, a shortage occurs. The price mechanism pushes prices back toward equilibrium.
Three main economic systems:
- Capitalist (free market): Private ownership, prices set by market.
- Socialist (command): Government owns resources, plans production.
- Mixed economy: A combination. Pakistan uses a mixed economy.
Key Points to Remember
- 1Scarcity and choice
- 2Demand and supply
- 3Market equilibrium
- 4Economic systems
Pakistan Example
Mango Prices in Karachi's Sunday Bazaar
In Karachi's Sunday bazaar, mango prices demonstrate supply and demand perfectly. At peak season, supply is high, prices drop. Near the end, supply falls, prices rise. The price mechanism works automatically — adjusting until the market clears.
Quick Revision Infographic
Economics — Quick Revision
Basic Economics
Key Concepts
Mango Prices in Karachi's Sunday Bazaar
In Karachi's Sunday bazaar, mango prices demonstrate supply and demand perfectly. At peak season, supply is high, prices drop. Near the end, supply falls, prices rise. The price mechanism works automatically — adjusting until the market clears.